I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
recane recon reckon recoin regain racon regna racoon requin rockoon
recane chicane cane decane can scone cone acne jacana pecan lacune kokanee cocaine cain eucaine kane scan skeane gane cocain toucan canoe chicano
rec reck wreak wreck areca break freak freaky creak creaky orca reargue rerack dreck drecky